it('should open each panel on click when allowMultiple is false', function() {
          var elm = compileDirective('default-multiple-false');
          expect(sandboxEl.find('[bs-collapse-target]:eq(0)').hasClass('in')).toBeTruthy();
          expect(sandboxEl.find('[bs-collapse-target]:eq(1)').hasClass('in')).toBeFalsy();
          sandboxEl.find('[bs-collapse-toggle]:eq(1)').triggerHandler('click');